Bituminous veins and oil in fractures in source rocks were analyzed to shows that fractures are dominant paths for migration, which was also illustrated by rock fluorescence analysis after thermal simulation.
In recent years, with deep-going research and ongoing exploration, China's various petroleum companies have successively completed a number of special research projects such as integrated assessments of deep-seated petroleum geological conditions, early evaluation of Paleozoic blocks and deep-seated natural gas and coal gas in major petroleum-bearing areas of eastern China, and major advances have been made in the evaluation of the hydrocarbon-generating conditions of deep-seated hydrocarbon sources rocks.
It is proposed out that multiple hydrocarbon sources are the substance foundation of forming high packing density gas reservoirs. Silurian is the important source providing gas for carboniferous reservoirs.
The reservoir-formed conditions of the known large-medium gas fields show that themain geologic factors of forming large-medium gas fields are the inherited palaeohigh, bigtrap, rich hydrocarbon sources and fossil erosion surface etc.
9-O-methylfusarubin was isolated from a novel source, Fusarion oxysporum, and evaluated for its phytotoxic and chlorotic inducing properties in plants as well as its potential as an antineoplastic agent.
This note shows that for a BVP of Poisson's equation withQm(u, v) as its source function, a direct evaluation of some integrals yields the same exact results as obtained by similarity analysis.
The nonlinear PDEs consist of a heat equation with the Joule heating as a source and a current conservation equation with temperature-dependent electrical conductivity.
In order to get these second-order error estimates, the Joule heating source is used in a changed equivalent form.
A nonlinear degenerate parabolic equation with non-local source